Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5491852 | Physica B: Condensed Matter | 2017 | 10 Pages |
Abstract
We have obtained the temperature T0 of a phase transition in this model as a function of the frustration parameter J2 in the S=1/2 two-dimensional frustrated Heisenberg antiferromagnet in the square lattice considering second-neighbor interactions in the diagonal. We have employed the SU(2) Schwinger boson formalism to obtain the behavior of T0 vs. J2. We have considered the inter-chain coupling in the diagonal as antiferromagnetic, J2>0, and the nearest-neighbor coupling as antiferromagnetic J1>0. The critical temperature T0 is the temperature where the correlation length ξ(T0)â0.
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Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
L.S. Lima,